| Code | Material | Grade |
|---|---|---|
| 4176-30 | alloy steel | 2 |
| 4176-40 | alloy steel | 2 |
| 4176-301 | alloy steel | 1 |
| 4176-401 | alloy steel | 1 |


Gauge blocks meet ISO3650, ring gauges meet DIN2250-1:2008
Supplied with manufacturer inspection certificate
| Code | Material | Grade |
|---|---|---|
| 4176-30 | alloy steel | 2 |
| 4176-40 | alloy steel | 2 |
| 4176-301 | alloy steel | 1 |
| 4176-401 | alloy steel | 1 |
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